Littelfuse BA Series, BB Series Catalog Page
RoHS
BA/BB Varistor Series
BB Series
Varistor Products
Industrial High Energy Terminal Varistors > BA/BB Series
Description
The BA and BB Series transient surge suppressors are
heavy-duty industrial Metal-Oxide Varistors (MOVs)
designed to provide surge protection for motor
controls and power supplies used in oil-drilling, mining,
transportation equipment and other heavy industrial AC line
applications.
Agency Approvals
Agency Agency File Number
E320116 - for BA Series only.
BA Series
These UL– recognized varistors have similar package
construction but differ in size and ratings. The BA models
are rated from 130 to 880V
to 2800V
M(AC)
.
. The BB models from 1100
M(AC)
Both the BA and BB Series feature improved creep and
strike capability to minimize breakdown along the package
surface, a package design that provides complete electrical
isolation of the disc subassembly, and rigid terminals to
ensure secure wire contacts.
See BA/BB Series Device Ratings and Specifications Table
for part number and brand information.
Features
• High energy absorption
capability W
TM
BA Series 3200J
BB Series 10,000J
• Wide operating voltage
range V
M(AC)RMS
BA Series 130V to 880V
BB Series 1100V to 2800V
• Rigid terminals for
secure wire contact
• Case design provides
complete electrical
isolation of disc
subassembly
• Littelfuse largest
packaged disc
60mm diameter
• No derating up to
85ºC ambient
•
RoHS compliant
Absolute Maximum Ratings
• For ratings of individual members of a series, see Device Ratings and Specications chart
Continuous BA Series BB Series Units
Steady State Applied Voltage:
AC Voltage Range (V
DC Voltage Range (V
Transients:
Peak Pulse Current (I
For 8/20µs Current Wave (See Figure 2) 50,000 to 70,000 70,000 A
Single Pulse Energy Range
For 2ms Current Squarewave (W
Operating Ambient Temperature Range (T
Storage Temperature Range (T
Temperature Coefficient (a
) -55 to +125 -55 to +125
STG
V
) of Clamping Voltage (VC) at Specified Test Current <0.01 <0.01 %/OC
Hi-Pot Encapsulation (COATING Isolation Voltage Capability)
(Dielectric must withstand indicated DC voltage for one minute per MIL–STD–202, Method 301)
COATING Insulation Resistance 1000 1000 MΩ
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only
rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is
not implied.
©2011 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/ba or /bb.html for current information.
) 130 to 880 1100 to 2800 V
M(AC)RMS
) 175 to 1150 1400 to 3500 V
M(DC)
)
TM
) 450 to 3200 3800 to 10000 J
) -55 to +85 -55 to +85
A
TM
5000 5000 V
Revision: September 25, 2011
O
C
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C
BA/BB Varistor Series
HI–ENERGY MOV’S BA/BB Series
Varistor Products
Industrial High Energy Terminal Varistors > BA/BB Series
BA/BB Series Ratings & Specifications
Maximum Rating (85°C) Specifications (25°C)
Part
Number
Continuous Transient
V
RMS
V
M(AC)
V
V
M(DC)
DC
Energy
(2ms)
WTM ITM Min V
Peak
Current
8 x 20µs
Varistor Voltage at 1mA
DC Test Current
N(DC)
Max VC C
Maximum
Clamping Volt
at 200A
V
C
Current (8/20µs)
(V) (V) (J) (A) (V) (V) (V) (V) (pF)
BA Series
V131BA60 130 175 450 50000 184 200 228 340 20000
V151BA60 150 200 530 50000 212 240 268 400 16000
V251BA60 250 330 880 50000 354 390 429 620 10000
V271BA60 275 369 950 50000 389 430 473 680 9000
V321BA60 320 420 110 0 50000 462 510 561 760 7500
V421BA60 420 560 150 0 70000 6 10 680 74 8 1060 6000
V481BA60 480 640 160 0 70000 670 750 825 116 0 5500
V511BA60 5 10 675
1800 70000 735 820 910 1300 5000
V571BA60 575 730 2100 70000 805 910 1000 1420 4500
V661BA60 660 850 2300 70000 940 1050 11 60 1640 4000
V751BA60 750 970 2600 70000 1080 120 0 1320 1880 3500
V881BA60 880 115 0 3200 70000 1290 15 00 1650 2340 2700
Typical
Capaci-
tance f =
1MHz
BB Series
V112BB60 110 0 1400 3800 70000 1620 180 0 2060 2940 2200
V142BB60 1400 1750 5000 70000 2020 2200 2550 3600 1800
V172BB60 17 00 2150 6000 70000 2500 2700 3030 4300 15 00
V202BB60 2000 2500 7500 70000 2970 3300 3630 5200 1200
V242BB60 2400 3000 8600 70000 3510 3900 4290 6200 1000
V282BB60 2800 3500 10000 70000 4230 4700 5170 74 0 0 800
NOTE: Average power dissipation of transients not to exceed 2.5W. See Figures 3 and 4 for more information on power dissipation.
BA/BB Varistor Series
Revision: September 25, 2011
©2011 Littelfuse, Inc.
Please refer to www.littelfuse.com/series/ba or /bb.html for current information.
Specifications are subject to change without notice.
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